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dt/Engine.cpp
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johnruina a6103e453d readme
2026-10-26 01:59:48 -04:00

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#include "Engine.h"
// ============================================================================
// Standard library
// ============================================================================
#include <iostream>
#include <vector>
#include <random>
#include <string>
#include <memory>
#include <type_traits>
#include <algorithm>
#include <cmath>
// ============================================================================
// OpenGL
// ============================================================================
#include <glad/glad.h>
#include <GLFW/glfw3.h>
// ============================================================================
// Math
// ============================================================================
#include <glm/glm.hpp>
#include <glm/gtc/matrix_transform.hpp>
#include <glm/gtc/type_ptr.hpp>
#include <glm/gtc/quaternion.hpp>
// ============================================================================
// Third party
// ============================================================================
#include <ft2build.h>
#include FT_FREETYPE_H
// ============================================================================
// Engine core
// ============================================================================
#include "common.h"
#include "Window.h"
#include "Camera.h"
#include "Keyboard.h"
#include "Mouse.h"
#include "Physics.h"
#include "RenderSystem.h"
#include "SoundSystem.h"
#include "ResourceManager.h"
#include "tFunctions.h"
#include "Debug.h"
// Rendering
#include "shaderClass.h"
#include "VBO.h"
#include "VAO.h"
#include "EBO.h"
#include "FBO.h"
#include "texture.h"
#include "Material.h"
#include "Mesh.h"
#include "Model.h"
#include "Cubemap.h"
#include "QuadVertices.h"
#include "Particle.h"
#include "Lighting.h"
#include "DirLight.h"
// Scene
#include "Folder.h"
#include "Sound.h"
#include "Gui.h"
#include "font.h"
// Character / animation
#include "Rig.h"
#include "Animator.h"
#include "Character.h"
#include "CharacterManager.h"
#include "DefaultBodyComponents.h"
#include "BodyComponentActions.h"
#define STB_IMAGE_IMPLEMENTATION
#include "stb_image.h"
// ============================================================================
// Constructor - window, callbacks, systems, shaders
// ============================================================================
Engine::Engine()
{
engine = this;
glfwSetFramebufferSizeCallback(window->handle, framebuffer_size_callback);
glfwSetCursorPosCallback(window->handle, mouse_callback);
glfwSetScrollCallback(window->handle, scroll_callback);
glfwSetKeyCallback(window->handle, key_callback);
glfwSetMouseButtonCallback(window->handle, mouse_button_callback);
glfwSwapInterval(1);
int fbw, fbh;
glfwGetFramebufferSize(window->handle, &fbw, &fbh);
framebuffer_size_callback(window->handle, fbw, fbh);
rendersystem = new RenderSystem();
rendersystem->Initialize();
physicsengine = new Physics();
physicsengine->SetGravity(physicsengine->GetGravity() * 1.25f);
mainf = new Folder();
camera = new Camera();
camera->t.TranslateTo({ 0.0f, 5.0f, 0.0f });
rendersystem->RigShader = new Shader("shaders/rig.vert", "shaders/default.frag");
rendersystem->MeshShader = new Shader("shaders/default.vert", "shaders/default.frag");
rendersystem->MeshShadowShader = new Shader("shaders/meshshadow.vert", "shaders/shadow.frag");
rendersystem->RigShadowShader = new Shader("shaders/rigshadow.vert", "shaders/shadow.frag");
rendersystem->SkyboxShader = new Shader("shaders/skybox.vert", "shaders/skybox.frag");
rendersystem->ScreenShader = new Shader("shaders/ScreenShader.vert", "shaders/ScreenShader.frag");
rendersystem->ImageBoxShader = new Shader("shaders/ImageBox.vert", "shaders/ImageBox.frag");
rendersystem->BoxShader = new Shader("shaders/Box.vert", "shaders/Box.frag");
rendersystem->Text2DShader = new Shader("shaders/2DText.vert", "shaders/2DText.frag");
rendersystem->ParticleShader = new Shader("shaders/Particle.vert", "shaders/Particle.frag");
rendersystem->HitboxShader = new Shader("shaders/Hitbox.vert", "shaders/Hitbox.frag");
}
// ============================================================================
// Initiate - scene setup + game loop
// ============================================================================
void Engine::Initiate()
{
Font* arial = new Font("assets/ft/arial.ttf");
Texture* blanktex = new Texture("assets/blanktexture.png");
Texture* snowflake = new Texture("assets/snowflake.png");
charactermanager = new CharacterManager();
charactermanager->LoadRig("humanoid", "assets/rig.glb");
charactermanager->LoadAnimation("walk", "assets/walkanim.glb", "humanoid");
charactermanager->LoadAnimation("punch", "assets/punchanim.glb", "humanoid");
// ------------------------------------------------------------------------
// Player character
// ------------------------------------------------------------------------
Character& testcharacter = *charactermanager->CreateCharacter("character", "humanoid", "walk");
charactermanager->SetControlledCharacter("character");
testcharacter.castshadow = true;
testcharacter.colorOverride = glm::vec4(0.62f, 0.64f, 0.68f, 1.0f);
testcharacter.roughness = 0.65f;
testcharacter.body->t.ScaleBy({ 0.7f, 2.5f, 0.7f });
testcharacter.body->t.TranslateTo({ 0.0f, 1.5f, 0.0f });
testcharacter.body->animator->loops = true;
testcharacter.SetPunchAnimation(charactermanager->GetAnimation("punch"));
testcharacter.BindToRenderSystem();
p* characterBody = new p(testcharacter.body);
characterBody->mass = 80.0f;
characterBody->lockRotation = true;
characterBody->friction = 0.0f;
physicsengine->AddObject(characterBody);
// ------------------------------------------------------------------------
// NPC
// ------------------------------------------------------------------------
Character& npc = *charactermanager->CreateCharacter("npc", "humanoid", "walk");
npc.castshadow = true;
npc.colorOverride = glm::vec4(0.10f, 0.20f, 0.48f, 1.0f);
npc.metallic = 0.1f;
npc.roughness = 0.5f;
npc.body->t.ScaleBy({ 0.7f, 2.5f, 0.7f });
npc.body->t.TranslateTo({ 3.0f, 1.25f, 3.0f });
npc.SetPunchAnimation(charactermanager->GetAnimation("punch"));
npc.SetPunchLooping(true);
npc.Punch();
npc.BindToRenderSystem();
p* npcBody = new p(npc.body);
npcBody->mass = 80.0f;
npcBody->lockRotation = true;
npcBody->friction = 0.0f;
physicsengine->AddObject(npcBody);
testcharacter.SetWalking(false);
npc.SetWalking(false);
// ------------------------------------------------------------------------
// Rain particles
// ------------------------------------------------------------------------
ParticleEmitter* rain = new ParticleEmitter();
rain->name = "rain";
rain->tex = snowflake;
rain->opaque = false;
rain->speed = 35.0f;
rain->lifespan = 0.6f;
rain->angularvelocity = { 0.0f, 0.0f, glm::radians(10.0f) };
rain->size = { 0.04f, 0.4f, 0.0f };
rain->emitangle = { glm::radians(60.0f), glm::radians(360.0f), glm::radians(60.0f) };
rain->facecamera = false;
rain->color = { 1.0f, 1.0f, 1.0f, 1.0f };
rain->emitdirection = ParticleEmitter::EmitDirection::Perpendicular;
rain->t.TranslateTo({ 0.0f, 10.0f, 0.0f });
rain->t.RotateToQuaternion(glm::quat(glm::vec3(glm::radians(85.0f), 0.0f, 0.0f)));
rain->BindToRenderSystem();
mainf->AddChild(rain);
// ------------------------------------------------------------------------
// 3D audio
// ------------------------------------------------------------------------
Sound* music = new Sound();
music->name = "music";
music->LoadSound("assets/fs.wav", true);
music->Update3DPosition(0.0f, 0.0f, 0.0f);
music->PlayTrack(true);
mainf->AddChild(music);
// ------------------------------------------------------------------------
// GUI
// ------------------------------------------------------------------------
TextBox* fpsCounter = new TextBox();
fpsCounter->font = arial;
fpsCounter->text = "";
fpsCounter->fontsize = 0.5f;
fpsCounter->Color = { 0.0f, 0.0f, 0.0f };
fpsCounter->t2d.position = { 1.0f, 0.0f, 0.0f, 0.0f };
fpsCounter->t2d.center = { 1.0f, 0.0f };
fpsCounter->textCenter = { 0.0f, 0.5f };
fpsCounter->t2d.size = { 0.1f, 0.1f, 0.0f, 0.0f };
fpsCounter->BindToRenderSystem();
TextBox* healthText = new TextBox();
healthText->font = arial;
healthText->text = "";
healthText->fontsize = 0.5f;
healthText->Color = { 0.95f, 0.97f, 1.0f };
healthText->t2d.position = { 0.02f, 0.02f, 0.0f, 0.0f };
healthText->t2d.size = { 0.45f, 0.0f, 0.0f, 40.0f };
healthText->textCenter = { 0.0f, 0.0f };
healthText->BindToRenderSystem();
const float healthBarFillWidth = 314.0f;
Box* healthBarBack = new Box();
healthBarBack->Color = { 0.03f, 0.04f, 0.06f };
healthBarBack->Opacity = 0.85f;
healthBarBack->t2d.position = { 0.02f, 1.0f, 0.0f, -30.0f };
healthBarBack->t2d.center = { 0.0f, 1.0f };
healthBarBack->t2d.size = { 0.0f, 0.0f, 320.0f, 26.0f };
healthBarBack->BindToRenderSystem();
Box* healthBarFill = new Box();
healthBarFill->Color = { 0.2f, 0.85f, 0.35f };
healthBarFill->t2d.position = { 0.02f, 1.0f, 3.0f, -33.0f };
healthBarFill->t2d.center = { 0.0f, 1.0f };
healthBarFill->t2d.size = { 0.0f, 0.0f, healthBarFillWidth, 20.0f };
healthBarFill->BindToRenderSystem();
struct MenuButton {
Box* box;
TextBox* label;
glm::vec3 color;
};
enum class MenuScreen { Main, Paused, Settings };
MenuScreen menuScreen = MenuScreen::Main;
MenuScreen settingsReturn = MenuScreen::Main;
bool menuActive = true;
bool prevMouseDown = false;
std::vector<Box*> menuItems;
Box* menuVeil = new Box();
menuVeil->Color = { 0.02f, 0.03f, 0.05f };
menuVeil->Opacity = 0.55f;
menuVeil->t2d.position = { 0.0f, 0.0f, 0.0f, 0.0f };
menuVeil->t2d.size = { 1.0f, 1.0f, 0.0f, 0.0f };
menuVeil->BindToRenderSystem();
menuItems.push_back(menuVeil);
TextBox* menuTitle = new TextBox();
menuTitle->font = arial;
menuTitle->text = "EIIFWHRN";
menuTitle->fontsize = 3.0f;
menuTitle->Color = { 0.95f, 0.97f, 1.0f };
menuTitle->t2d.position = { 0.5f, 0.17f, 0.0f, 0.0f };
menuTitle->t2d.center = { 0.5f, 0.5f };
menuTitle->t2d.size = { 0.8f, 0.0f, 0.0f, 170.0f };
menuTitle->textCenter = { 0.5f, 0.5f };
menuTitle->BindToRenderSystem();
menuItems.push_back(menuTitle);
TextBox* menuSubtitle = new TextBox();
menuSubtitle->font = arial;
menuSubtitle->text = "MAIN MENU";
menuSubtitle->fontsize = 0.65f;
menuSubtitle->Color = { 0.55f, 0.65f, 0.78f };
menuSubtitle->t2d.position = { 0.5f, 0.285f, 0.0f, 0.0f };
menuSubtitle->t2d.center = { 0.5f, 0.5f };
menuSubtitle->t2d.size = { 0.4f, 0.0f, 0.0f, 50.0f };
menuSubtitle->textCenter = { 0.5f, 0.5f };
menuSubtitle->BindToRenderSystem();
menuItems.push_back(menuSubtitle);
auto MakeMenuButton = [&](const char* text, float x, float y, glm::vec3 color,
float width = 340.0f, float height = 62.0f,
float fontsize = 0.85f) {
Box* box = new Box();
box->Color = color;
box->Opacity = 0.92f;
box->t2d.position = { x, y, 0.0f, 0.0f };
box->t2d.center = { 0.5f, 0.5f };
box->t2d.size = { 0.0f, 0.0f, width, height };
box->BindToRenderSystem();
menuItems.push_back(box);
TextBox* label = new TextBox();
label->font = arial;
label->text = text;
label->fontsize = fontsize;
label->Color = { 0.95f, 0.97f, 1.0f };
label->t2d.position = { x, y, 0.0f, 0.0f };
label->t2d.center = { 0.5f, 0.5f };
label->t2d.size = { 0.0f, 0.0f, width, height };
label->textCenter = { 0.5f, 0.5f };
label->BindToRenderSystem();
menuItems.push_back(label);
return MenuButton{ box, label, color };
};
MenuButton playButton = MakeMenuButton("PLAY", 0.5f, 0.46f, glm::vec3(0.12f, 0.30f, 0.22f));
MenuButton settingsButton = MakeMenuButton("SETTINGS", 0.5f, 0.58f, glm::vec3(0.15f, 0.23f, 0.34f));
MenuButton quitButton = MakeMenuButton("QUIT", 0.5f, 0.70f, glm::vec3(0.17f, 0.18f, 0.22f));
MenuButton sensitivityDown = MakeMenuButton("- SENS", 0.40f, 0.47f,
glm::vec3(0.15f, 0.23f, 0.34f), 170.0f, 50.0f, 0.65f);
MenuButton sensitivityUp = MakeMenuButton("+ SENS", 0.60f, 0.47f,
glm::vec3(0.15f, 0.23f, 0.34f), 170.0f, 50.0f, 0.65f);
MenuButton fovDown = MakeMenuButton("- FOV", 0.40f, 0.58f,
glm::vec3(0.15f, 0.23f, 0.34f), 170.0f, 50.0f, 0.65f);
MenuButton fovUp = MakeMenuButton("+ FOV", 0.60f, 0.58f,
glm::vec3(0.15f, 0.23f, 0.34f), 170.0f, 50.0f, 0.65f);
MenuButton hitboxToggle = MakeMenuButton("HITBOXES: OFF", 0.5f, 0.68f,
glm::vec3(0.20f, 0.22f, 0.28f), 340.0f, 50.0f, 0.65f);
MenuButton resetButton = MakeMenuButton("RESET DEFAULTS", 0.5f, 0.77f,
glm::vec3(0.20f, 0.22f, 0.28f), 340.0f, 52.0f, 0.65f);
MenuButton backButton = MakeMenuButton("BACK", 0.5f, 0.86f,
glm::vec3(0.12f, 0.30f, 0.22f), 340.0f, 52.0f, 0.85f);
TextBox* settingsInfo = new TextBox();
settingsInfo->font = arial;
settingsInfo->fontsize = 0.65f;
settingsInfo->Color = { 0.85f, 0.90f, 0.97f };
settingsInfo->t2d.position = { 0.5f, 0.37f, 0.0f, 0.0f };
settingsInfo->t2d.center = { 0.5f, 0.5f };
settingsInfo->t2d.size = { 0.8f, 0.0f, 0.0f, 90.0f };
settingsInfo->textCenter = { 0.5f, 0.5f };
settingsInfo->BindToRenderSystem();
menuItems.push_back(settingsInfo);
TextBox* menuHint = new TextBox();
menuHint->font = arial;
menuHint->text = "WASD TO MOVE | LEFT CLICK TO PUNCH | ESC FOR MENU";
menuHint->fontsize = 0.5f;
menuHint->Color = { 0.55f, 0.61f, 0.70f };
menuHint->t2d.position = { 0.5f, 0.92f, 0.0f, 0.0f };
menuHint->t2d.center = { 0.5f, 0.5f };
menuHint->t2d.size = { 0.9f, 0.0f, 0.0f, 40.0f };
menuHint->textCenter = { 0.5f, 0.5f };
menuHint->BindToRenderSystem();
menuItems.push_back(menuHint);
auto SetButtonVisible = [](MenuButton& button, bool visible) {
button.box->Opacity = visible ? 0.92f : 0.0f;
button.label->Opacity = visible ? 1.0f : 0.0f;
};
auto ApplyMenuLayout = [&]() {
const bool main = menuScreen == MenuScreen::Main;
const bool paused = menuScreen == MenuScreen::Paused;
const bool settings = menuScreen == MenuScreen::Settings;
menuVeil->Opacity = 0.55f;
menuTitle->Opacity = 1.0f;
menuSubtitle->Opacity = 1.0f;
menuHint->Opacity = 1.0f;
menuSubtitle->text = main ? "MAIN MENU" : (paused ? "PAUSED" : "SETTINGS");
playButton.label->text = paused ? "RESUME" : "PLAY";
quitButton.label->text = paused ? "QUIT TO MENU" : "QUIT";
menuHint->text = settings
? "ESC TO GO BACK | ADJUST MOUSE, FOV, AND HITBOXES"
: "WASD TO MOVE | LEFT CLICK TO PUNCH | ESC FOR MENU";
SetButtonVisible(playButton, !settings);
SetButtonVisible(settingsButton, !settings);
SetButtonVisible(quitButton, !settings);
SetButtonVisible(sensitivityDown, settings);
SetButtonVisible(sensitivityUp, settings);
SetButtonVisible(fovDown, settings);
SetButtonVisible(fovUp, settings);
SetButtonVisible(hitboxToggle, settings);
SetButtonVisible(resetButton, settings);
SetButtonVisible(backButton, settings);
settingsInfo->Opacity = settings ? 1.0f : 0.0f;
hitboxToggle.label->text = showHitboxes ? "HITBOXES: ON" : "HITBOXES: OFF";
hitboxToggle.color = showHitboxes
? glm::vec3(0.12f, 0.30f, 0.22f)
: glm::vec3(0.20f, 0.22f, 0.28f);
settingsInfo->text = "MOUSE SENSITIVITY: " +
std::to_string((int)std::lround(StartupCmPer360)) +
" CM / 360\nFIELD OF VIEW: " + std::to_string((int)std::lround(camera->FOV));
};
auto OpenMenu = [&](MenuScreen screen) {
menuActive = true;
menuScreen = screen;
charactermanager->ClearInput();
testcharacter.SetWalking(false);
npc.SetWalking(false);
fpsCounter->Opacity = 0.0f;
healthText->Opacity = 0.0f;
healthBarBack->Opacity = 0.0f;
healthBarFill->Opacity = 0.0f;
camera->lockedcursor = false;
glfwSetInputMode(window->handle, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
prevMouseDown = mouse->IsLeftDown();
};
auto ResumeGame = [&]() {
menuActive = false;
charactermanager->ClearInput();
for (Box* item : menuItems) item->Opacity = 0.0f;
fpsCounter->Opacity = 1.0f;
healthText->Opacity = 1.0f;
healthBarBack->Opacity = 0.85f;
healthBarFill->Opacity = 1.0f;
camera->lockedcursor = true;
glfwSetInputMode(window->handle, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
int ww, wh;
glfwGetWindowSize(window->handle, &ww, &wh);
glfwSetCursorPos(window->handle, ww * 0.5, wh * 0.5);
};
fpsCounter->Opacity = 0.0f;
healthText->Opacity = 0.0f;
healthBarBack->Opacity = 0.0f;
healthBarFill->Opacity = 0.0f;
camera->lockedcursor = false;
glfwSetInputMode(window->handle, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
// ------------------------------------------------------------------------
// Baseplate
// ------------------------------------------------------------------------
Mesh* floor = CreateCubeMesh();
floor->name = "baseplate";
floor->meshTexture = blanktex;
floor->roughness = 0.9f;
floor->t.ScaleTo({ 32.0f, 2.0f, 32.0f });
floor->t.TranslateTo({ 0.0f, -1.0f, 0.0f });
floor->BindToRenderSystem();
mainf->AddChild(floor);
p* floorBody = new p(floor);
floorBody->velocity = false;
physicsengine->AddObject(floorBody);
const BoundingBox floorBounds = floor->t.GetRotationlessAABB();
const float wallHeight = 4.0f;
const float wallThickness = 1.0f;
const float wallOffset = 16.0f + wallThickness * 0.5f;
const float wallSpan = 32.0f + wallThickness;
auto AddWall = [&](const char* name, const glm::vec3& position, const glm::vec3& scale) {
Mesh* wall = CreateCubeMesh();
wall->name = name;
wall->meshTexture = blanktex;
wall->roughness = 0.9f;
wall->t.ScaleTo(scale);
wall->t.TranslateTo(position);
wall->BindToRenderSystem();
mainf->AddChild(wall);
p* wallBody = new p(wall);
wallBody->velocity = false;
physicsengine->AddObject(wallBody);
};
AddWall("wall_north", { 0.0f, wallHeight * 0.5f, -wallOffset }, { wallSpan, wallHeight, wallThickness });
AddWall("wall_south", { 0.0f, wallHeight * 0.5f, wallOffset }, { wallSpan, wallHeight, wallThickness });
AddWall("wall_west", { -wallOffset, wallHeight * 0.5f, 0.0f }, { wallThickness, wallHeight, 32.0f });
AddWall("wall_east", { wallOffset, wallHeight * 0.5f, 0.0f }, { wallThickness, wallHeight, 32.0f });
// ------------------------------------------------------------------------
// Ground check + respawn
// ------------------------------------------------------------------------
auto IsGrounded = [&]() -> bool {
Ray downRay;
downRay.origin = testcharacter.body->t.GetTranslation();
downRay.direction = glm::vec3(0.0f, -1.0f, 0.0f);
const float halfHeight = testcharacter.body->t.GetScale().y * 0.5f;
for (p* obj : physicsengine->GetObjects()) {
if (obj->pointer == testcharacter.body) continue;
if (!obj->collision) continue;
auto hit = IsRayInT(downRay, obj->pointer->t);
if (hit.has_value()) {
if (glm::distance(downRay.origin, hit.value()) < halfHeight + 0.15f)
return true;
}
}
return false;
};
std::mt19937 respawnRng(std::random_device{}());
auto RandomSpawn = [&]() -> glm::vec3 {
std::uniform_real_distribution<float> spread(-14.0f, 14.0f);
return { spread(respawnRng), 15.0f, spread(respawnRng) };
};
auto UpdateHitboxDebug = [&]() {
std::vector<HitboxDebugLine> lines;
if (showHitboxes) {
for (Character* character : charactermanager->GetCharacters()) {
if (!character->body) continue;
lines.push_back({ character->body->t.GetMatrix(), glm::vec3(0.2f, 0.9f, 0.35f) });
const Hitbox& punch = character->GetPunchHitbox();
if (punch.active)
lines.push_back({ punch.transform.GetMatrix(), glm::vec3(1.0f, 0.25f, 0.1f) });
}
}
rendersystem->SetHitboxDebugLines(lines);
};
// ========================================================================
// Game loop
// ========================================================================
while (!glfwWindowShouldClose(window->handle))
{
frame++;
static double prevFrameTime = glfwGetTime();
const double frameNow = glfwGetTime();
const float deltatime = glm::clamp(float(frameNow - prevFrameTime), 0.001f, 1.0f / 60.0f) * (144.0f / float(fps));
prevFrameTime = frameNow;
const float refDt = 1.0f / float(fps);
static bool prevEscapeDown = false;
const bool escapeDown = keyboard->IsKeyDown(GLFW_KEY_ESCAPE);
const bool escapePressed = escapeDown && !prevEscapeDown;
prevEscapeDown = escapeDown;
if (escapePressed) {
if (!menuActive)
OpenMenu(MenuScreen::Paused);
else if (menuScreen == MenuScreen::Settings)
menuScreen = settingsReturn;
else if (menuScreen == MenuScreen::Paused)
ResumeGame();
}
// --------------------------------------------------------------------
// Mouse look
// --------------------------------------------------------------------
while (Mouse::Event buffer = mouse->Read()) {
if (menuActive) continue;
if (buffer.GetType() == Mouse::Event::Type::Move && camera->lockedcursor) {
float xoffset = mouse->GetX() - mouse->GetLastX();
float yoffset = mouse->GetLastY() - mouse->GetY();
camera->ProcessMouseMovement(xoffset, yoffset);
}
else if (buffer.GetType() == Mouse::Event::Type::LPress) {
testcharacter.Punch(camera->t.GetFrontVector());
}
else if (buffer.GetType() == Mouse::Event::Type::RPress) {
camera->lockedcursor = !camera->lockedcursor;
if (camera->lockedcursor) {
glfwSetInputMode(window->handle, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
int ww, wh;
glfwGetWindowSize(window->handle, &ww, &wh);
glfwSetCursorPos(window->handle, ww * 0.5, wh * 0.5);
}
else {
glfwSetInputMode(window->handle, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
}
}
}
if (menuActive) {
ApplyMenuLayout();
const bool liveBackdrop = menuScreen == MenuScreen::Main ||
(menuScreen == MenuScreen::Settings && settingsReturn == MenuScreen::Main);
if (liveBackdrop) {
static float menuAngle = 0.6f;
menuAngle += deltatime * 0.12f;
const glm::vec3 menuTarget(0.0f, 1.4f, 0.0f);
const glm::vec3 menuCamera = menuTarget +
glm::vec3(std::sin(menuAngle) * 7.5f, 2.6f, std::cos(menuAngle) * 7.5f);
camera->t.TranslateTo(menuCamera);
camera->t.RotateToQuaternion(LookAt(menuTarget - menuCamera));
camera->Step(deltatime);
npc.SetTurnDirection(testcharacter.body->t.GetTranslation() -
npc.body->t.GetTranslation());
charactermanager->Step(deltatime);
rain->t.TranslateTo(camera->t.GetTranslation() + glm::vec3(0.0f, 20.0f, 0.0f));
rain->Step(deltatime);
}
soundsystem->SetListenerPosition(
camera->t.GetTranslation(),
camera->t.GetFrontVector(),
camera->t.GetUpVector()
);
soundsystem->Update();
MenuButton* buttons[] = {
&playButton, &settingsButton, &quitButton,
&sensitivityDown, &sensitivityUp, &fovDown, &fovUp,
&hitboxToggle, &resetButton, &backButton
};
for (MenuButton* button : buttons)
button->box->t2d.Recalculate();
const glm::vec2 mousePos((float)mouse->GetX(), (float)mouse->GetY());
auto Hovered = [&](const MenuButton& button) {
return mousePos.x > button.box->t2d.pixelposition.x &&
mousePos.y > button.box->t2d.pixelposition.y &&
mousePos.x < button.box->t2d.pixelposition.x + button.box->t2d.pixelsize.x &&
mousePos.y < button.box->t2d.pixelposition.y + button.box->t2d.pixelsize.y;
};
const bool playHovered = Hovered(playButton);
const bool settingsHovered = Hovered(settingsButton);
const bool quitHovered = Hovered(quitButton);
const bool sensDownHovered = Hovered(sensitivityDown);
const bool sensUpHovered = Hovered(sensitivityUp);
const bool fovDownHovered = Hovered(fovDown);
const bool fovUpHovered = Hovered(fovUp);
const bool hitboxHovered = Hovered(hitboxToggle);
const bool resetHovered = Hovered(resetButton);
const bool backHovered = Hovered(backButton);
playButton.box->Color = playHovered ? glm::vec3(0.18f, 0.44f, 0.32f) : playButton.color;
settingsButton.box->Color = settingsHovered ? glm::vec3(0.22f, 0.34f, 0.50f) : settingsButton.color;
quitButton.box->Color = quitHovered ? glm::vec3(0.30f, 0.20f, 0.22f) : quitButton.color;
sensitivityDown.box->Color = sensDownHovered ? glm::vec3(0.22f, 0.34f, 0.50f) : sensitivityDown.color;
sensitivityUp.box->Color = sensUpHovered ? glm::vec3(0.22f, 0.34f, 0.50f) : sensitivityUp.color;
fovDown.box->Color = fovDownHovered ? glm::vec3(0.22f, 0.34f, 0.50f) : fovDown.color;
fovUp.box->Color = fovUpHovered ? glm::vec3(0.22f, 0.34f, 0.50f) : fovUp.color;
hitboxToggle.box->Color = hitboxHovered ? glm::vec3(0.22f, 0.34f, 0.50f) : hitboxToggle.color;
resetButton.box->Color = resetHovered ? glm::vec3(0.30f, 0.32f, 0.40f) : resetButton.color;
backButton.box->Color = backHovered ? glm::vec3(0.18f, 0.44f, 0.32f) : backButton.color;
const bool mouseDown = mouse->IsLeftDown();
if (mouseDown && !prevMouseDown) {
if (menuScreen == MenuScreen::Settings) {
if (sensDownHovered) {
StartupCmPer360 = glm::clamp(StartupCmPer360 + 2.0f, 4.0f, 80.0f);
camera->SetSensitivityCm(StartupCmPer360, StartupMouseDpi);
}
else if (sensUpHovered) {
StartupCmPer360 = glm::clamp(StartupCmPer360 - 2.0f, 4.0f, 80.0f);
camera->SetSensitivityCm(StartupCmPer360, StartupMouseDpi);
}
else if (fovDownHovered) {
camera->FOV = glm::clamp(camera->FOV - 5.0f, 60.0f, 130.0f);
}
else if (fovUpHovered) {
camera->FOV = glm::clamp(camera->FOV + 5.0f, 60.0f, 130.0f);
}
else if (hitboxHovered) {
showHitboxes = !showHitboxes;
}
else if (resetHovered) {
StartupCmPer360 = 16.0f;
StartupMouseDpi = 800.0f;
camera->SetSensitivityCm(StartupCmPer360, StartupMouseDpi);
camera->FOV = 110.0f;
showHitboxes = false;
}
else if (backHovered) {
menuScreen = settingsReturn;
}
}
else if (playHovered) {
ResumeGame();
}
else if (settingsHovered) {
settingsReturn = menuScreen;
menuScreen = MenuScreen::Settings;
}
else if (quitHovered) {
if (menuScreen == MenuScreen::Main)
glfwSetWindowShouldClose(window->handle, 1);
else
menuScreen = MenuScreen::Main;
}
}
prevMouseDown = mouseDown;
UpdateHitboxDebug();
rendersystem->Render(*camera);
glfwPollEvents();
continue;
}
const glm::vec3 camFront = camera->t.GetFrontVector();
const glm::vec3 camRight = camera->t.GetRightVector();
const float movespeed = 3.0f * 1.3f * 0.6f;
// --------------------------------------------------------------------
// WASD movement
// --------------------------------------------------------------------
const glm::vec3 inputDirection = testcharacter.GetMovementDirection(camFront, camRight);
const bool hasMoveInput = glm::length(inputDirection) > 0.0f;
if (hasMoveInput)
testcharacter.SetTurnDirection(inputDirection);
testcharacter.SetWalking(hasMoveInput);
const glm::vec3 npcVelocity(npcBody->linearvelocity.x, 0.0f, npcBody->linearvelocity.z);
npc.SetWalking(glm::length(npcVelocity) > 0.1f);
npc.SetTurnDirection(testcharacter.body->t.GetTranslation() -
npc.body->t.GetTranslation());
charactermanager->Step(deltatime);
const glm::vec3 inputVel = hasMoveInput
? testcharacter.GetForwardDirection() * movespeed
: glm::vec3(0.0f);
const float accel = 40.0f;
const float damp = 0.75f;
const float airControl = 0.5f;
const float groundTopSpeed = movespeed * accel * refDt * damp / (1.0f - damp);
if (IsGrounded()) {
const float dampStep = std::pow(damp, deltatime / refDt);
const float accelScale = refDt * damp * (1.0f - dampStep) / (deltatime * dampStep * (1.0f - damp));
characterBody->linearvelocity.x *= dampStep;
characterBody->linearvelocity.z *= dampStep;
characterBody->linearvelocity.x += inputVel.x * accel * deltatime * accelScale;
characterBody->linearvelocity.z += inputVel.z * accel * deltatime * accelScale;
}
else if (glm::length(inputVel) > 0.0f) {
const glm::vec3 wishDir = glm::normalize(inputVel);
const float current = glm::dot(glm::vec3(characterBody->linearvelocity.x, 0.0f,
characterBody->linearvelocity.z), wishDir);
const float add = glm::clamp(groundTopSpeed - current, 0.0f,
accel * airControl * movespeed * deltatime);
characterBody->linearvelocity.x += wishDir.x * add;
characterBody->linearvelocity.z += wishDir.z * add;
}
charactermanager->ResolveCombat(*physicsengine);
{
const int substeps = std::max(1, (int)std::ceil(deltatime * 120.0f));
const float subDt = deltatime / float(substeps);
for (int i = 0; i < substeps; i++) physicsengine->Step(subDt);
}
if (testcharacter.body->t.GetTranslation().y < -20.0f) {
testcharacter.body->t.TranslateTo(RandomSpawn());
characterBody->linearvelocity = glm::vec3(0.0f);
characterBody->WakeUp();
}
// --------------------------------------------------------------------
// Third person camera
// --------------------------------------------------------------------
{
const glm::vec3 playerPos = testcharacter.body->t.GetTranslation();
const glm::vec3 target = playerPos + glm::vec3(0.0f, 0.8f, 0.0f);
glm::vec3 cameraPos = target - camera->t.GetFrontVector() * 5.0f;
const bool playerOffFloor =
playerPos.x < floorBounds.min.x || playerPos.x > floorBounds.max.x ||
playerPos.z < floorBounds.min.z || playerPos.z > floorBounds.max.z;
const bool ignoreFloorCollision = playerOffFloor || playerPos.y < floorBounds.max.y;
const glm::vec3 cameraRay = cameraPos - target;
const float desiredDistance = glm::length(cameraRay);
const glm::vec3 cameraDir = desiredDistance > 0.0001f ? cameraRay / desiredDistance : glm::vec3(0.0f);
Ray cameraSweep;
cameraSweep.origin = target;
cameraSweep.direction = cameraDir;
float nearestHit = desiredDistance;
for (p* obj : physicsengine->GetObjects()) {
if (obj->pointer == testcharacter.body || !obj->collision)
continue;
if (obj == floorBody && ignoreFloorCollision)
continue;
auto hit = IsRayInT(cameraSweep, obj->pointer->t);
if (!hit.has_value())
continue;
const float hitDistance = glm::dot(hit.value() - target, cameraDir);
if (hitDistance > 0.001f && hitDistance < nearestHit)
nearestHit = hitDistance;
}
const float cameraPadding = 0.3f;
cameraPos = target + cameraDir * glm::max(nearestHit - cameraPadding, 0.05f);
camera->t.TranslateTo(cameraPos);
}
camera->Step(deltatime);
rain->t.TranslateTo(camera->t.GetTranslation() + glm::vec3(0.0f, 20.0f, 0.0f));
rain->Step(deltatime);
Sound* music = static_cast<Sound*>(mainf->GetFirstChildOfName("music"));
if (music) music->Update3DPosition(0.0f, 0.0f, 0.0f);
soundsystem->SetListenerPosition(
camera->t.GetTranslation(),
camera->t.GetFrontVector(),
camera->t.GetUpVector()
);
soundsystem->Update();
// --------------------------------------------------------------------
// FPS counter
// --------------------------------------------------------------------
{
static double lastTime = glfwGetTime();
static int frameCount = 0;
static int measuredFps = 0;
static float accumulator = 0.0f;
double now = glfwGetTime();
accumulator += (float)(now - lastTime);
lastTime = now;
frameCount++;
if (accumulator >= 0.25f) {
measuredFps = (int)(frameCount / accumulator);
frameCount = 0;
accumulator = 0.0f;
}
fpsCounter->text = std::to_string(measuredFps) + " FPS";
}
healthText->text = "PLAYER " + std::to_string((int)std::lround(testcharacter.body->Health)) +
" HP DUMMY " + std::to_string((int)std::lround(npc.body->Health)) + " HP";
const float healthRatio = glm::clamp((float)testcharacter.body->Health / 100.0f, 0.0f, 1.0f);
healthBarFill->t2d.size.z = healthBarFillWidth * healthRatio;
healthBarFill->Color = glm::mix(glm::vec3(0.85f, 0.20f, 0.12f),
glm::vec3(0.20f, 0.85f, 0.35f), healthRatio);
// --------------------------------------------------------------------
// Render
// --------------------------------------------------------------------
UpdateHitboxDebug();
rendersystem->Render(*camera);
glfwPollEvents();
}
}
// ============================================================================
// GLFW callbacks
// ============================================================================
void framebuffer_size_callback(GLFWwindow* window, int w, int h)
{
if (w <= 0 || h <= 0) return;
::window->width = w;
::window->height = h;
glViewport(0, 0, w, h);
if (engine && engine->rendersystem)
engine->rendersystem->Resize(w, h);
}
void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
{
if (key == GLFW_KEY_F11 && action == GLFW_PRESS) {
static int wx = 100, wy = 100, ww = 1920, wh = 1080;
if (glfwGetWindowMonitor(window)) {
glfwSetWindowMonitor(window, nullptr, wx, wy, ww, wh, 0);
}
else {
glfwGetWindowPos(window, &wx, &wy);
glfwGetWindowSize(window, &ww, &wh);
GLFWmonitor* monitor = glfwGetPrimaryMonitor();
const GLFWvidmode* mode = glfwGetVideoMode(monitor);
glfwSetWindowMonitor(window, monitor, 0, 0, mode->width, mode->height, mode->refreshRate);
}
glfwSwapInterval(1);
}
if (action == GLFW_PRESS) keyboard->KeyDown(key);
else if (action == GLFW_RELEASE) keyboard->KeyUp(key);
if (key >= GLFW_KEY_A && key <= GLFW_KEY_Z && engine && engine->charactermanager) {
const char letter = (char)('A' + (key - GLFW_KEY_A));
if (action == GLFW_PRESS) engine->charactermanager->PressInput(letter);
else if (action == GLFW_RELEASE) engine->charactermanager->ReleaseInput(letter);
}
}
void scroll_callback(GLFWwindow* window, double xoffset, double yoffset)
{
}
void mouse_callback(GLFWwindow* window, double xposIn, double yposIn)
{
mouse->OnMouseMove(static_cast<float>(xposIn), static_cast<float>(yposIn));
if (!engine || !engine->camera || !engine->camera->lockedcursor) return;
int ww, wh;
glfwGetWindowSize(window, &ww, &wh);
const double cx = ww / 2.0;
const double cy = wh / 2.0;
if (std::abs(xposIn - cx) < 0.5 && std::abs(yposIn - cy) < 0.5) return;
glfwSetCursorPos(window, cx, cy);
mouse->OnMouseMove((float)cx, (float)cy);
}
void mouse_button_callback(GLFWwindow* window, int button, int action, int mods)
{
if (button == GLFW_MOUSE_BUTTON_RIGHT) {
if (action == GLFW_PRESS) mouse->RightDown();
else mouse->RightUp();
}
else if (button == GLFW_MOUSE_BUTTON_LEFT) {
if (action == GLFW_PRESS) mouse->LeftDown();
else mouse->LeftUp();
}
}
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